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Ether functionalized lignin for fuel production

a technology of ether and lignin, which is applied in the field of lignin composition, can solve the problems of inability to disperse lignin, biofuel industries are struggling with food vs fuel debate, efficiency and general supply of raw materials, and lack of lignin or lignin, so as to reduce the amount of substrate, inhibit disproportionation, and increase the amount of lignin

Active Publication Date: 2017-10-19
REN FUEL K2B
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to a method for dissolving a higher amount of lignin in a carrier liquid. The amount of lignin or lignin derivatives in the composition according to the present invention can be 1 weight % or more, 2 weight % or more, 4 weight % or more, 5 weight % or more, or 7 weight % or more. The method involves treating the biomass material with a process described in WO2012 / 121659, which involves reducing the substrate using a catalyst and a solvent mixture. The reduced biomass material can then be used as the biomass material in the composition according to the present invention. The composition can also contain other compounds or polymers, such as lignin or lignin derivatives, that have been treated with the reduction method described in WO2012 / 121659. The biomass material can also be purified or separated through filtration, ultra-filtration, or cross-flow ultra-filtration. The separated lignin or lignin derivatives can then be used as the biomass material in the composition according to the present invention.

Problems solved by technology

A major reason for difficulty in treating the lignin is the inability to disperse the lignin for contact with catalysts that can break the lignin down.
However the biofuel industries are struggling with issues like food vs fuel debate, efficiency and the general supply of raw material.
One drawback of using lignin as a source for fuel production is the issue of providing lignin or lignin derivatives in a form suitable for hydrotreaters or crackers.
The problem is that lignin is not soluble in oils or fatty acids which is, if not necessary, highly wanted.

Method used

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  • Ether functionalized lignin for fuel production
  • Ether functionalized lignin for fuel production
  • Ether functionalized lignin for fuel production

Examples

Experimental program
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Effect test

example 1

[0065]To acid precipitated lignin from black liquor was dodecylamine added in a 1:1 weight % proportion forming a mixture and heated at 150° C. over night. A fatty acid epoxide is then added in a 1:1 weight proportion to the mixture and heated again.

[0066]The etherification was determined using GPC and NMR.

example 2

[0067]To acid precipitated lignin from black liquor was a primary epoxide (a C16 or C18) added in a 1:2.5 weight % proportion (lignin:epoxide) forming a mixture. An anhydride was then added to the mixture and left to react.

[0068]The etherification was determined using GPC and NMR.

example 3

[0069]To acid precipitated lignin from black liquor was a primary epoxide (a C16 or C18) added in a 1:2.5 weight % proportion (lignin:epoxide) forming a mixture and heated at 150 or 200° C., respectively, for 5 hours.

[0070]The etherfication was determined using GPC and NMR.

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Abstract

The present invention relates to a composition comprising lignin and a solvent where the lignin is functionalized with an ether group.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a composition of lignin and a solvent where the lignin has been substituted or functionalized with an ether group in order to increase the solubility of the lignin in suitable solvents.BACKGROUND[0002]There is an increasing interest in using biomass as a source for fuel production. Biomass includes, but is not limited to, plant parts, fruits, vegetables, processing waste, wood chips, chaff, grain, grasses, com, com husks, weeds, aquatic plants, hay, paper, paper products, recycled paper and paper products, lignocellulosic material, lignin and any cellulose containing biological material or material of biological origin.[0003]An important component of biomass is the lignin present in the solid portions of the biomass. Lignin comprises chains of aromatic and oxygenate constituents forming larger molecules that are not easily treated. A major reason for difficulty in treating the lignin is the inability to disperse the lignin...

Claims

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Application Information

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IPC IPC(8): C08H7/00C10G11/00C07G1/00C10G45/00C10G3/00
CPCC08H6/00C10G3/50C10G11/00C10G2400/04C07G1/00C10G2400/02C10G45/00C08L97/005C09D197/005C09J197/005C10G1/002C10G1/065C10L1/04C10L1/10C10G2300/1037C10G2300/1011C10L1/143C10L1/16C10L1/2462Y02P30/20Y02E50/10
Inventor SAMEC, JOSEPHLOFSTEDT, JOAKIMOREBOM, ALEXANDERDAHLSTRAND, CHRISTIANSAWADJOON, SUPAPORN
Owner REN FUEL K2B
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